Flush tank bulb or valve



- Sept. 24, 1935.

J. c. BURNES 250155614 FLUSH TANKv BULB OR VALVE Filed Oct. 3, 1934 efaepz llnelgil BY Mgg/zw@ Patented Sept. 24, 1935 Uidi'i' STATS anni einer Irines Application October 3, 1934,

1 Claim.

The invention relates to a flush tank bulb or valve and more especially to a resilient or elastic ush ball valve for a flush tank.

The primary object of the invention is the provision of a bulb or valve of this character, wherein the same when seated to shut ofi discharge of water from the ilush tank will be devoid of water content and on the lifting of this bulb or valve the same will float until the admission of water content thereto, whereupon it becomes weighted under the influence of the water content to effect a positive and sure seating thereof and also for quick action.

Another object of the invention is the provision of a bulb or valve of this character, wherein the construction thereof is such as to eliminate the sticking of the same on the valve seat and also that will be prevented from being pushed aside from water rushing in from the water supply and other causes resultant in the failure of the valve to properly function or operate, the valve being provided with a pilot or a tip functioning to guide the valve properly to its seat, particularly when the said valve or bulb has been lifted for the discharge of the water from the flush tank and at the same time eliminating side washing of the valve by the water currents from the water supply to the tank.

A further object of the invention is the provision of a valve or bulb of this character which has a piston principle where the velocity of the water and the weight of the water are employed to close the valve, while the pilot or tip to said valve or bulb guides it in position for seating and proper seating action thereto.

A still further object of the invention is the provision of a valve or bulb of this character which is simple in its construction, positive of operation, thoroughly reliable and efci'ent in its working, strong, durable, and inexpensive to manufacture.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described in detail, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention, and pointed out in the claim hereunto appended.

In the accompanying drawing:

Figure l is a central vertical section on an enlarged scale showing the valve or bulb constructed in accordance with the invention unseated from the valve seat.

Serial No. 746,738

Figure 2 is a top plan view, the Valve rod being in section.

Figure 3 is a sectional view on the line 3-3 of Figure l looking in the direction of the arrows.

Similar reference characters indicate corresponding parts throughout the-several views in the drawing.

Referring to the drawing in detail, the bulb shown is of suitable yielding material, for examn) ple, rubber, and comprises a hollow main body 5 having the substantially semi-spherical shaped lower portion 6 and a conveXed top 1 provided with a central vertically disposed boss 8. Embedded within the boss 8 is a metallic nut or 1,3 inwardly threaded sleeve 9 in which is tapped the hanger or operating rod IB and the latter has connection with a coni-rel (not shawn) for the lifting of the valve to unseat the same for the discharge of water from a ilush tank, a portion thereof being indicated at il, while the seat for the valve or bulb is indicated at I2.

The valve or bulb body 5 at the lower semispherical portion has joined therewith an inverted substantially conical-shaped guide pilot or tip I3 through the medium of a contracted neck I4 centrally located in alignment with the llongitudinal center aXis of said valve or bulb and this pilot or tip is of hollow formation and in communication with the body 5 through the; passage l5 in the neck I4 and has embedded in the larger area of its body a wire mesh reinforcement I6 to avoid collapsing of the pilot or tip.

The extreme point of the pilot or tip I3 is provided with a water discharge port or opening Il, while the body 5 at the lower portion 6 thereof, close to the neck it, has provided therein air escape ports iii. The tip or pilot i3 cooperates with the seat l2 for the valve or bulb to guide the same and to'prevent displacement by water currents from the water supply to the tank. The valve or bulb under its construction will be relieved of sticking on the side of the valve seat and also from being pushed aside from water rushing into the tank Il from a water supply, or other causes.

When the control is actuated, it being understood, of course, that the valve is normally seated, the same is pulledl from the valve seat l2 and 50 the pilot or tip being submerged in the water causes the said valve or bulb to become iilled with water through the port l1 as air rushes out through the ports I3. When water in the tank has almost run out, the rushing of the fi O water out of the tank acts upon the pilot or tip I3, causing the valve to be pulled downwardly onto the seat in a piston-like manner, and the Water content of the valve gives weight thereto to assure velocity action for the seating of said valve. When the valve becomes seated, the water content is liberated through the port l1, so that the valve when free of its content will have oating action on the lifting thereof from its seat for the discharging of the water from the tank.

The construction and manner of operation of the valve or bulb should be apparent from the foregoing description and, therefore, a more extended explanation has been omitted for the sake of brevity.

What is claimed is:

A flush tank bulb comprising a hollow semispherical shaped body having a convexed top, a hollow pilot tip having an opening at its apex and a tubular neck joining the pilot with the said body in spaced relation to each other and establishing communication therebetween, the 10v body being formed with openings concentrically g with respect to said neck.

JOSEPH C. BURNES. 

